66 The Anatomy ^/^ HORSE. Chap. V. 



in theExpulfion of the Excrement, which they do by lift- 

 ing up the Fundament. 



Ti. ^th' 7 f The Bladder hjis alfo its Sphinfter, which 

 thBladdir ^^ compofed of circular Fibres, as that of the 

 jinus ; and in like Manner ferves to con- 

 ftringe or purfe up its Neck, that the Urine may not pafs 

 without a fpontaneous relaxing of that Mufclc. In Mares, 

 it is feated at the Hole where the Neck of the Bladder 

 opens into the Vagina. 



Having already taken Notice of the Mufcles belonging 

 to the Yard, call'd its Ereiforis and Dilatoris, and the Cre- 

 mafter Mufcles, by which the Stones are fufpended, as alfo 

 thofe of the Clitoris in Mares, I fhall therefore pafs them by 

 in this Place, and proceed to the Shoulder-blade, i5ic. 



§. IX. Of the Mufcles cf the Shoiilder-hlade and Shoulder, 



with thofe which move the Fore-leg and Foot, 

 ^e Shoulder The Shoulder-blade has four Pair of Muf- 



hlade four Pair, cles, agreeable to its four feveral Motions. 



The firfl Pair, call'd Cucullares, from the Refemblance 

 they bear to a Monk's Hood, are feated between the two 

 Shoulder-blades, covering the Top of the Withers. Thefe 

 arife thin and flefhy from fhe hind Part of the Head, but as 

 they pafs down the Neck, have other membranous Begin- 

 nings from five of its Spines, and from eight or nine of the 

 uppermoft of the Chell, and are inferted into the whole 

 Spine of the Shoulder-blade, as alfo into the Shoulder- 

 bone, and broader Part of the Colb.r-bone. When the up- 

 per Part of the Mufcle is contraded, then the Shoulder- 

 blade is thought to be moved fomevvhat obliquely upwards, 

 becaufe of the oblique Diredion of its Fibres ; but when 

 that Part which fprings from the Withers is contrafted, it is 

 then pulled ftreight thitherward. 



The fecond Pair are call'd Levator es., or Lifters : They 

 are fituated above the Collar-bone, arifing from the iranf- 

 verfe Proceiles of the firfl four Vertebra of the Neck, and 

 are inferted into the Fore-corner of the Shoulder-blades j 

 thefe draw the Blades upwards and forwards. 



The third Pair, named Serratum minus Jniicum, lie un- 

 der the pectoral Mufcles, and fpring from the four upper- 

 moft Ribs, before they turn griftly, by four flefhy Portions, 

 reprefenting the Teeth of a Saw, and are inferted into the 

 Anchor-like Procefs of the Shculder-blade : Thefe move 

 the Shoulder-blades forward towards the Chefl. 



The 



